buildx failed with: ERROR: failed to solve: process "/bin/sh -c mkdir /app && apt-get update && apt-get -y install curl telnet && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* && useradd -u 1000 -G 1000 -U -m -s /bin/bash oleduser && chown oleduser:oleduser /app" did not complete successfully: exit code: 6